fix #46: check sort array index before using it for sorting

.goreleaser.yaml

@@ -18,9 +18,6 @@ builds:
       - windows
       - darwin
       - freebsd
-    goarch:
-      - amd64
-      - arm64
 
 archives:
   - formats: [tar.gz]

README.md

@@ -45,17 +45,17 @@ Operational Flags:
   -n, --numbering                    Enable header numbering
   -N, --no-color                     Disable pattern highlighting
   -H, --no-headers                   Disable headers display
-  -s, --separator <string>           Custom field separator (maybe char, string or :class:)
+  -s, --separator <string>           Custom field separator
   -k, --sort-by <int|name>           Sort by column (default: 1)
   -z, --fuzzy                        Use fuzzy search [experimental]
   -F, --filter <field[!]=reg>        Filter given field with regex, can be used multiple times
   -T, --transpose-columns string     Transpose the speficied columns (separated by ,)
   -R, --regex-transposer </from/to/> Apply /search/replace/ regexp to fields given in -T
-  -K  --regex-colorizer /from/color/ colorize pattern of output (color: fg[:bg])
   -j, --json                         Read JSON input (must be array of hashes)
   -I, --interactive                  Interactively filter and select rows
-  -g, --auto-headers                 Generate headers if there are none present in input
+      --auto-headers                 Generate headers if there are none present in input
-  -x, --custom-headers a,b,...       Use custom headers, separated by comma
+      --custom-headers a,b,...       Use custom headers, separated by comma
+
 
 Output Flags (mutually exclusive):
   -X, --extended                     Enable extended output
@@ -63,14 +63,12 @@ Output Flags (mutually exclusive):
   -O, --orgtbl                       Enable org-mode table output
   -S, --shell                        Enable shell evaluable output
   -Y, --yaml                         Enable yaml output
-  -J, --jsonout                      Enable JSON output
   -C, --csv                          Enable CSV output
   -A, --ascii                        Default output mode, ascii tabular
-  -P, --template <tpl>               Enable template mode with template <tpl>
   -L, --hightlight-lines             Use alternating background colors for tables
-  -o, --ofs <char>                   Output field separator, used by -A and -C. 
   -y, --yank-columns                 Yank specified columns (separated by ,) to clipboard,
                                      space separated
+      --ofs <char>                   Output field separator, used by -A and -C. 
 
 Sort Mode Flags (mutually exclusive):
   -a, --sort-age                     sort according to age (duration) string
@@ -178,7 +176,7 @@ Here, we modified the 4th column (`-T4`) by replacing every space with
 a dash. If you need to work with `/` characters, you can also use any
 other separator, for instance: `-R '| |-|'`.
 
-There's also an interactive mode, invoked with the option `-I`, where
+There's also an interactive mode, invoked with the option B<-I>, where
 you can interactively filter and select rows:
 
 <img width="937" height="293" alt="interactive" src="https://github.com/user-attachments/assets/0d4d65e2-d156-43ed-8021-39047c7939ed" />

cfg/config.go

@@ -1,5 +1,5 @@
 /*
-Copyright © 2022-2026 Thomas von Dein
+Copyright © 2022-2025 Thomas von Dein
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -28,7 +28,7 @@ import (
 )
 
 const (
-	Version  = "v1.6.0"
+	Version  = "v1.5.12"
 	MAXPARTS = 2
 )
 
@@ -102,15 +102,15 @@ type Config struct {
 	SortByColumn    string // 1,2
 	UseSortByColumn []int  // []int{1,2}
 
-	TransposeColumns    string // 1,2
+	TransposeColumns    string       // 1,2
-	UseTransposeColumns []int  // []int{1,2}
+	UseTransposeColumns []int        // []int{1,2}
-
+	Transposers         []string     // []string{"/ /-/", "/foo/bar/"}
-	Transposers    []string     // []string{"/ /-/", "/foo/bar/"}
+	UseTransposers      []Transposer // {Search: re, Replace: string}
-	UseTransposers []Transposer // {Search: re, Replace: string}
-
-	Colorizers    []string     // []string{"/ /-/", "/foo/fg[:bg]/"}
-	UseColorizers []Transposer // {Search: re, Replace: color}
 
+	/*
+	 FIXME: make configurable somehow, config file or ENV
+	 see https://github.com/gookit/color.
+	*/
 	ColorStyle        color.Style
 	HighlightStyle    color.Style
 	NoHighlightStyle  color.Style
@@ -357,23 +357,6 @@ func (conf *Config) PrepareTransposers() error {
 	return nil
 }
 
-func (conf *Config) PrepareColorizers() error {
-	for _, colorizer := range conf.Colorizers {
-		parts := strings.Split(colorizer, string(colorizer[0]))
-		if len(parts) != 4 {
-			return fmt.Errorf("colorizer function must have the format /regexp/foreground-color[:background-color]/")
-		}
-
-		conf.UseColorizers = append(conf.UseColorizers,
-			Transposer{
-				Search:  *regexp.MustCompile(parts[1]),
-				Replace: parts[2]},
-		)
-	}
-
-	return nil
-}
-
 func (conf *Config) CheckEnv() {
 	// check for environment vars, command line flags have precedence,
 	// NO_COLOR is being checked by the color module itself.

cfg/config_test.go

@@ -39,6 +39,7 @@ func TestPrepareModeFlags(t *testing.T) {
 		{Modeflag{}, ASCII},
 	}
 
+	// FIXME: use a map for easier printing
 	for _, testdata := range tests {
 		testname := fmt.Sprintf("PrepareModeFlags-expect-%d", testdata.expect)
 		t.Run(testname, func(t *testing.T) {

cmd/root.go

@@ -1,5 +1,5 @@
 /*
-Copyright © 2022-2026 Thomas von Dein
+Copyright © 2022-2025 Thomas von Dein
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -95,7 +95,6 @@ func Execute() {
 			conf.PrepareCustomHeaders(headers)
 
 			wrapE(conf.PrepareFilters())
-			wrapE(conf.PrepareColorizers())
 
 			conf.DetermineColormode()
 			conf.ApplyDefaults()
@@ -192,8 +191,6 @@ func Execute() {
 		"filter", "F", nil, "Filter by field (field=regexp || field!=regexp)")
 	rootCmd.PersistentFlags().StringArrayVarP(&conf.Transposers,
 		"regex-transposer", "R", nil, "apply /search/replace/ regexp to fields given in -T")
-	rootCmd.PersistentFlags().StringArrayVarP(&conf.Colorizers,
-		"regex-colorizer", "K", nil, "apply /search/color[:background]/ to the whole output")
 
 	// input
 	rootCmd.PersistentFlags().StringVarP(&conf.InputFile, "read-file", "r", "",

cmd/shortusage.go

@@ -1,7 +1,7 @@
 package cmd
 
 const shortusage = `tablizer [regex,...] [-r file] [flags]
--c col,...   show specified columns                  -L  colorize rows
+-c col,...   show specified columns                  -L  highlight matching lines
 -k col,...   sort by specified columns               -j  read JSON input
 -F col=reg   filter field with regexp                -v  invert match
 -T col,...   transpose specified columns             -n  numberize columns
@@ -13,7 +13,6 @@ const shortusage = `tablizer [regex,...] [-r file] [flags]
 -x col,...   use custom headers                      -d  debug
 -o char      use char as output separator            -g  auto generate headers
 
--K /pattern/foreground[:background]/ colorize pattern of output
 -O org  -C CSV  -M md  -X ext  -S shell  -Y yaml  -J json  -P template
 -a sort by age   -i sort numerically   -t sort by time   -D sort descending order
 -m show manual   -v  show version      --help  show detailed help`

cmd/tablizer.go

@@ -20,7 +20,6 @@ SYNOPSIS
           -F, --filter <field[!]=reg>        Filter given field with regex, can be used multiple times
           -T, --transpose-columns string     Transpose the speficied columns (separated by ,)
           -R, --regex-transposer </from/to/> Apply /search/replace/ regexp to fields given in -T
-          -K  --regex-colorizer /from/color/ colorize pattern of output (color: fg[:bg])
           -j, --json                         Read JSON input (must be array of hashes)
           -I, --interactive                  Interactively filter and select rows
           -g, --auto-headers                 Generate headers if there are none present in input
@@ -468,20 +467,9 @@ CONFIGURATION AND COLORS
     lightGreen, lightMagenta, lightRed, lightWhite, lightYellow, magenta,
     red, white, yellow
 
-    but you may also use HTML color codes without the hash sign.
+    The Variables FG and BG are being used to highlight matches. The other
-
+    *FG and *BG variables are for colored table output (enabled with the
-    The Variables FG and BG are being used to highlight matching rows. The
+    "-L" parameter).
-    other *FG and *BG variables are for colored table output (enabled with
-    the "-L" parameter).
-
-    You can also use the option "-K" to colorize particular patterns, not
-    whole lines. The option can be given multiple times and expects the
-    following parameter:
-
-        -K '/regex/foreground[:background]/
-
-    that is, background color is optional. This colorization will applied on
-    top of any previous colorizations, if any.
 
     Colorization can be turned off completely either by setting the
     parameter "-N" or the environment variable NO_COLOR to a true value.
@@ -543,7 +531,6 @@ Operational Flags:
   -F, --filter <field[!]=reg>        Filter given field with regex, can be used multiple times
   -T, --transpose-columns string     Transpose the speficied columns (separated by ,)
   -R, --regex-transposer </from/to/> Apply /search/replace/ regexp to fields given in -T
-  -K  --regex-colorizer /from/color/ colorize pattern of output (color: fg[:bg])
   -j, --json                         Read JSON input (must be array of hashes)
   -I, --interactive                  Interactively filter and select rows
   -g, --auto-headers                 Generate headers if there are none present in input

lib/filter.go

@@ -1,5 +1,5 @@
 /*
-Copyright © 2022-2026 Thomas von Dein
+Copyright © 2022-2025 Thomas von Dein
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -22,8 +22,8 @@ import (
 	"io"
 	"strings"
 
-	"codeberg.org/scip/tablizer/cfg"
 	"github.com/lithammer/fuzzysearch/fuzzy"
+	"codeberg.org/scip/tablizer/cfg"
 )
 
 /*

lib/helpers.go

@@ -1,5 +1,5 @@
 /*
-Copyright © 2022-2026 Thomas von Dein
+Copyright © 2022 Thomas von Dein
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -26,8 +26,8 @@ import (
 	"strconv"
 	"strings"
 
-	"codeberg.org/scip/tablizer/cfg"
 	"github.com/gookit/color"
+	"codeberg.org/scip/tablizer/cfg"
 )
 
 func findindex(s []int, e int) (int, bool) {
@@ -245,33 +245,35 @@ func reduceColumns(conf cfg.Config, data *Tabdata) {
 	}
 }
 
+// FIXME: refactor this beast!
 func colorizeData(conf cfg.Config, output string) string {
-	if !conf.NoColor && !color.IsConsole(os.Stdout) {
-		return output
-	}
-
 	switch {
-	case conf.UseHighlight:
+	case conf.UseHighlight && color.IsConsole(os.Stdout):
 		highlight := true
 		colorized := ""
-		style := color.Style{}
+		first := true
 
-		for idx, line := range strings.Split(output, "\n") {
+		for _, line := range strings.Split(output, "\n") {
-			if idx == 0 {
+			if highlight {
-				style = conf.HighlightHdrStyle
+				if first {
-			}
+					// we  need to add  two spaces to the  header line
+					//  because tablewriter omits them for some reason
+					//  in pprint mode. This doesn't matter as long as
+					//  we don't use colorization. But with colors the
+					// missing spaces can be seen.
+					if conf.OutputMode == cfg.ASCII {
+						line += "  "
+					}
 
-			switch highlight {
+					line = conf.HighlightHdrStyle.Sprint(line)
-			case true:
+					first = false
-				if idx > 0 {
+				} else {
-					style = conf.HighlightStyle
+					line = conf.HighlightStyle.Sprint(line)
 				}
-			case false:
+			} else {
-				style = conf.NoHighlightStyle
+				line = conf.NoHighlightStyle.Sprint(line)
 			}
 
-			line = style.Sprint(line)
-
 			highlight = !highlight
 
 			colorized += line + "\n"
@@ -279,7 +281,7 @@ func colorizeData(conf cfg.Config, output string) string {
 
 		return colorized
 
-	case len(conf.Patterns) > 0:
+	case len(conf.Patterns) > 0 && !conf.NoColor && color.IsConsole(os.Stdout):
 		out := output
 
 		for _, re := range conf.Patterns {

lib/printer.go

@@ -1,5 +1,5 @@
 /*
-Copyright © 2022-2026 Thomas von Dein
+Copyright © 2022-2025 Thomas von Dein
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -23,7 +23,6 @@ import (
 	"fmt"
 	"io"
 	"log"
-	"os"
 	"strconv"
 	"strings"
 	"text/template"
@@ -76,8 +75,8 @@ func printData(writer io.Writer, conf cfg.Config, data *Tabdata) {
 	}
 }
 
-func output(writer io.Writer, conf cfg.Config, str string) {
+func output(writer io.Writer, str string) {
-	_, err := fmt.Fprint(writer, colorizeOutput(conf, str))
+	_, err := fmt.Fprint(writer, str)
 	if err != nil {
 		log.Fatalf("failed to print output: %s", err)
 	}
@@ -139,7 +138,7 @@ func printOrgmodeData(writer io.Writer, conf cfg.Config, data *Tabdata) {
 		log.Fatalf("Failed to render table: %s", err)
 	}
 
-	output(writer, conf, color.Sprint(colorizeData(conf, tableString.String())))
+	output(writer, color.Sprint(colorizeData(conf, tableString.String())))
 }
 
 /*
@@ -198,7 +197,7 @@ func printMarkdownData(writer io.Writer, conf cfg.Config, data *Tabdata) {
 		log.Fatalf("Failed to render table: %s", err)
 	}
 
-	output(writer, conf, color.Sprint(colorizeData(conf, tableString.String())))
+	output(writer, color.Sprint(colorizeData(conf, tableString.String())))
 }
 
 /*
@@ -255,7 +254,7 @@ func printASCIIData(writer io.Writer, conf cfg.Config, data *Tabdata) {
 		log.Fatalf("Failed to render table: %s", err)
 	}
 
-	output(writer, conf, color.Sprint(colorizeData(conf, tableString.String())))
+	output(writer, color.Sprint(colorizeData(conf, tableString.String())))
 }
 
 /*
@@ -276,7 +275,7 @@ func printExtendedData(writer io.Writer, conf cfg.Config, data *Tabdata) {
 		}
 	}
 
-	output(writer, conf, colorizeData(conf, out))
+	output(writer, colorizeData(conf, out))
 }
 
 /*
@@ -299,7 +298,7 @@ func printShellData(writer io.Writer, data *Tabdata) {
 	}
 
 	// no colorization here
-	output(writer, cfg.Config{}, out)
+	output(writer, out)
 }
 
 func printJsonData(writer io.Writer, data *Tabdata) {
@@ -328,7 +327,7 @@ func printJsonData(writer io.Writer, data *Tabdata) {
 		log.Fatal(err)
 	}
 
-	output(writer, cfg.Config{}, string(jsonstr))
+	output(writer, string(jsonstr))
 }
 
 func printYamlData(writer io.Writer, data *Tabdata) {
@@ -365,7 +364,7 @@ func printYamlData(writer io.Writer, data *Tabdata) {
 		log.Fatal(err)
 	}
 
-	output(writer, cfg.Config{}, string(yamlstr))
+	output(writer, string(yamlstr))
 }
 
 func printCSVData(writer io.Writer, conf cfg.Config, data *Tabdata) {
@@ -415,23 +414,3 @@ func printTemplateData(writer io.Writer, conf cfg.Config, data *Tabdata) {
 		log.Fatalf("failed to print output: %s", err)
 	}
 }
-
-func colorizeOutput(conf cfg.Config, input string) string {
-	if len(conf.UseColorizers) > 0 && !conf.NoColor && color.IsConsole(os.Stdout) {
-		for _, colorizer := range conf.UseColorizers {
-			// colorize matching parts of the whole output with given color, if the terminal supports it
-			// color may contain fg:bg or just fg. Color definitions see https://github.com/gookit/color
-			input = colorizer.Search.ReplaceAllStringFunc(input, func(in string) string {
-				col := colorizer.Replace
-				if strings.Contains(col, ":") {
-					parts := strings.Split(col, ":")
-					return color.Sprintf("<fg=%s;bg=%s>%s</>", parts[0], parts[1], in)
-				}
-
-				return color.Sprintf("<fg=%s>%s</>", col, in)
-			})
-		}
-	}
-
-	return input
-}

t/testtable6.csv

@@ -1,5 +0,0 @@
-Date,Account Number,Subject,Amount
-20250101,968723487,Dogs Medication Invoice 9919292,-450.00
-20250103,172747812,Tax return tax id HHD813D/12564H,+912.14
-20250105,987122711,Car repair order 020123,-299.45
-20250108,731217273,Rent - 12234 Sunset Blvd,-2960.00

tablizer.1

@@ -133,7 +133,7 @@
 .\" ========================================================================
 .\"
 .IX Title "TABLIZER 1"
-.TH TABLIZER 1 "2026-01-19" "1" "User Commands"
+.TH TABLIZER 1 "2025-12-08" "1" "User Commands"
 .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
 .\" way too many mistakes in technical documents.
 .if n .ad l
@@ -158,7 +158,6 @@ tablizer \- Manipulate tabular output of other programs
 \&      \-F, \-\-filter <field[!]=reg>        Filter given field with regex, can be used multiple times
 \&      \-T, \-\-transpose\-columns string     Transpose the speficied columns (separated by ,)
 \&      \-R, \-\-regex\-transposer </from/to/> Apply /search/replace/ regexp to fields given in \-T
-\&      \-K  \-\-regex\-colorizer /from/color/ colorize pattern of output (color: fg[:bg])
 \&      \-j, \-\-json                         Read JSON input (must be array of hashes)
 \&      \-I, \-\-interactive                  Interactively filter and select rows
 \&      \-g, \-\-auto\-headers                 Generate headers if there are none present in input
@@ -683,22 +682,9 @@ black, blue,  cyan, darkGray, default, green,  lightBlue, lightCyan,
 lightGreen,   lightMagenta,   lightRed,   lightWhite,   lightYellow,
 magenta, red, white, yellow
 .PP
-but you may also use \s-1HTML\s0 color codes without the hash sign.
+The Variables \fB\s-1FG\s0\fR and \fB\s-1BG\s0\fR are being used to highlight matches. The
-.PP
+other *FG and *BG variables are for colored table output (enabled with
-The Variables  \fB\s-1FG\s0\fR and  \fB\s-1BG\s0\fR are being  used to  highlight matching
+the \f(CW\*(C`\-L\*(C'\fR parameter).
-rows. The  other *FG and  *BG variables  are for colored  table output
-(enabled with the \f(CW\*(C`\-L\*(C'\fR parameter).
-.PP
-You can also use the option \f(CW\*(C`\-K\*(C'\fR to colorize particular patterns, not
-whole lines. The option can be given multiple times and expects the
-following parameter:
-.PP
-.Vb 1
-\&    \-K \*(Aq/regex/foreground[:background]/
-.Ve
-.PP
-that is, background color is optional. This colorization will applied
-on top of any previous colorizations, if any.
 .PP
 Colorization can be turned off completely either by setting the
 parameter \f(CW\*(C`\-N\*(C'\fR or the environment variable \fB\s-1NO_COLOR\s0\fR to a true value.

tablizer.pod

@@ -19,7 +19,6 @@ tablizer - Manipulate tabular output of other programs
       -F, --filter <field[!]=reg>        Filter given field with regex, can be used multiple times
       -T, --transpose-columns string     Transpose the speficied columns (separated by ,)
       -R, --regex-transposer </from/to/> Apply /search/replace/ regexp to fields given in -T
-      -K  --regex-colorizer /from/color/ colorize pattern of output (color: fg[:bg])
       -j, --json                         Read JSON input (must be array of hashes)
       -I, --interactive                  Interactively filter and select rows
       -g, --auto-headers                 Generate headers if there are none present in input
@@ -515,20 +514,9 @@ black, blue,  cyan, darkGray, default, green,  lightBlue, lightCyan,
 lightGreen,   lightMagenta,   lightRed,   lightWhite,   lightYellow,
 magenta, red, white, yellow
 
-but you may also use HTML color codes without the hash sign.
+The Variables B<FG> and B<BG> are being used to highlight matches. The
-
+other *FG and *BG variables are for colored table output (enabled with
-The Variables  B<FG> and  B<BG> are being  used to  highlight matching
+the C<-L> parameter).
-rows. The  other *FG and  *BG variables  are for colored  table output
-(enabled with the C<-L> parameter).
-
-You can also use the option C<-K> to colorize particular patterns, not
-whole lines. The option can be given multiple times and expects the
-following parameter:
-
-    -K '/regex/foreground[:background]/
-
-that is, background color is optional. This colorization will applied
-on top of any previous colorizations, if any.
 
 Colorization can be turned off completely either by setting the
 parameter C<-N> or the environment variable B<NO_COLOR> to a true value.